What is the typical software development lifecycle?
💡 Model Answer
The typical software development lifecycle (SDLC) consists of five main phases: 1) Requirements – gathering and documenting what the system must do. 2) Design – creating architectural and detailed design documents. 3) Implementation – writing code and building the product. 4) Testing – verifying that the product meets requirements through unit, integration, system, and acceptance tests. 5) Deployment and Maintenance – releasing the product to users and providing ongoing support and updates. Some models add a Planning or Planning & Estimation phase at the start, and a Post‑deployment review at the end. The SDLC provides a structured approach to manage complexity, ensure quality, and deliver value.
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